Background

I'm Hanif Ivan Prasetyo, known online as YORA or YORA1928. I'm a student based in Indonesia, currently focused on information technology — specifically networking, cybersecurity, Linux, and server administration.

I work under the alias YORA1928 consistently across GitHub, Medium, and this website. This website serves as the central hub for my technical work, research, and writing.

Areas of Interest

My work covers several interconnected areas:

  • Networking — TCP/IP, DNS, DHCP, routing, and troubleshooting through hands-on lab work.
  • Cybersecurity — security fundamentals, vulnerability research, CVE analysis, and responsible disclosure.
  • Linux — system administration, permissions, SSH, and service management.
  • Server administration — VPS management, Docker, deployment, and configuration.
  • Vulnerability research — proof-of-concept development and technical documentation.

Learning Approach

I learn by doing. The cycle is simple:

LEARN → BUILD → TEST → DOCUMENT → IMPROVE → repeat

I build small labs, configure systems, test ideas, investigate problems, and write down what I find. Some experiments work. Some don't. Both outcomes teach me something.

I document my learning publicly because it forces clarity and creates a reference for future work.

Technical Interests

Tools and technologies I work with regularly:

  • Operating systems: Linux (Ubuntu, Debian)
  • Languages: Python, Bash
  • Networking tools: Nmap, Wireshark, curl, Nikto
  • Server tools: Docker, Git, Cisco networking

Online Presence

My work is documented across these public profiles:

  • GitHub — code, research tools, and certifications archive
  • Medium — technical writing and learning notes
  • Website — this site

Responsible Disclosure

All security research published here is conducted on systems I own or have explicit permission to test. Vulnerability reports are submitted through responsible disclosure. Sensitive details and exploitation instructions are excluded from public documentation.